%{
int yywrap(void); 
%}
%%
%%
int yywrap(void) 
{ 
 return 1; 
} 


int main(int argc, char **argv) 
{
	if(argc < 2)
	{
		printf("==== show filename's linenum =====\n");
		printf("usage:app.exe filename\n");
		return -1;
	}
	yyin = fopen(argv[1], "r");
	yylex();
	fclose(yyin);
}
